<p>Police departments and other law enforcement agencies continually analyze vast amounts of criminal incident data to better understand crime in their jurisdictions, to identify significant changes in crime levels, to plan community and neighborhood responses to crime, to investigate incidents, and to apprehend perpetrators. Law enforcement agencies are increasingly turning to automated tools to examine multiple incident reports and analyze criminal activities in their areas based on geographical location, time, and type.</p> <p>This article presents a system developed at the University of Virginia that adapts computerized techniques created for analyzing conventional crimes for use by law enforcement agencies in the Internet age.</p> <p>This computer crime analysis system builds directly on systems researched and built for conventional crime analysis over large regions. In addition to linking criminal activities by location, time, and method, this system can detect significant changes in criminal activity and discover criminal preferences to aid in predicting future threats.</p>